000 00307nam a2200121Ia 4500
008 211215s9999 xx 000 0 und d
040 _cJayakar Knowledge Resource Centre
100 _aHowells, W W
245 0 _aMankind in making
260 _bMERCURY BOOKS
_aLondon
_c1960
653 _aBiology
942 _c1
999 _c73648
_d73648